#ifdef GL_ES
precision mediump float;
#endif

uniform float u_time;
uniform vec2 u_resolution;
uniform vec2 u_mouse;

void main(){

    vec3 red = vec3(1.0,0.0,0.0);
    vec3 green = vec3(.0,1.,0.);
    vec2 st = gl_FragCoord.xy/u_resolution;

    float value = step(0.5,0.5);
    if(value > 0.5){
        gl_FragColor = vec4(red,1.0);
    }else{
        gl_FragColor = vec4(green,1.0);
    }
}